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Vishay General Semiconductor - Diodes Division SMBJ58CA-M3/5B
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- Part No.:
- SMBJ58CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CA-M3/5B.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,917
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Product details
Overview
SMBJ58CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 93.6 V at 6.4 A, and operates across –55 °C to +150 °C junction temperature range - deployed in industrial sensor signal lines and telecom interface protection.
For engineers reviewing the SMBJ58CA-M3/5B datasheet, SMBJ58CA-M3/5B pinout, SMBJ58CA-M3/5B application, or SMBJ58CA-M3/5B equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), RoHS-compliant halogen-free construction, and direct replacement guidance for surge-prone DC power rails and data line protection.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive transients. Its symmetrical I-V characteristics enable identical protection in both polarities without polarity marking on the device body.
Rated for 600 W peak pulse power with 10/1000 µs waveform and 0.01% duty cycle, it sustains 6.4 A peak pulse current (IPPM) while limiting voltage to 93.6 V - critical for safeguarding 48 V industrial bus interfaces and Ethernet PHY front-ends against ESD and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for 48 V systems. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - guaranteed breakdown threshold ensures predictable turn-on during transient events. |
| VC @ IPPM | 93.6 V at 6.4 A - clamping voltage limits stress on downstream ICs during 600 W surge events. |
| PPPM | 600 W - peak pulse power handling per 10/1000 µs waveform supports IEC 61000-4-5 Level 3/4 compliance testing. |
| IPPM | 6.4 A - peak surge current capability directly correlates to protected line impedance and transient energy absorption. |
| TJ max. | +150 °C - high junction temperature rating enables reliable operation in enclosed industrial enclosures without forced cooling. |
| RθJA | 100 °C/W - thermal resistance informs PCB copper pad design (0.2" × 0.2") for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals solderable per J-STD-002. No polarity marking - bidirectional symmetry eliminates orientation concerns during automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical bidirectional conduction - either terminal serves as anode or cathode depending on transient polarity; no mounting orientation constraint. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against high-energy surges per IEC 61000-4-5, reducing need for cascaded protection stages. |
| 93.6 V clamping voltage at 6.4 A | Provides 35.6 V headroom below typical 130 V MOSFET VDS rating, preventing gate oxide damage in 48 V motor drives. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Low profile SMB package (4.57 mm × 3.94 mm) | Minimizes PCB footprint while maintaining thermal mass for surge energy absorption in space-constrained modules. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance mandates for industrial and telecom equipment shipped globally. |
Applications
| Industrial Sensor Signal Protection | 48 V DC Power Rail Clamping |
|---|---|
|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O (RS-485, CAN) in factory automation sensors exposed to inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or between signal and ground to shunt transients before reaching precision ADC or transceiver IC. Use Value: Prevents latch-up or permanent damage to sensor ASICs by limiting transient voltage to ≤93.6 V while maintaining <1 µA leakage at 58 V. |
Use Scenario: Safeguarding 48 V input stage of PLC power supplies and motor controllers against load dump and back-EMF spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing surge energy during sudden disconnection of inductive loads, complementing upstream fusing. Use Value: Clamps 600 W transients within nanoseconds, preserving downstream DC-DC converters rated for ≤100 V input without derating. |
| Telecom Interface Surge Protection | Automotive Body Control Module (BCM) Inputs |
|
Use Scenario: Front-end protection for Ethernet PHYs, PoE injectors, and DSL line drivers subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary surge suppression element placed before common-mode chokes and transformer isolation to limit differential-mode overvoltage. Use Value: Delivers sub-1 ns response and 93.6 V clamping to keep PHY ICs within absolute maximum ratings during 10/1000 µs surges up to 600 W. |
Use Scenario: Input protection for BCM microcontroller GPIOs monitoring door lock actuators, window lifters, and lighting switches. IC Role / Device Role / Timing Role: Bidirectional clamp on 12 V/24 V control lines to suppress load dump and ISO 7637-2 pulse 5a/b transients. Use Value: Withstands 100 A non-repetitive forward surge (IFSM) and maintains 58 V standoff, ensuring compatibility with automotive battery voltage fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA-E3/5B | Same electrical specs and SMB package; RoHS-compliant but contains brominated flame retardants (non-halogen-free). | Acceptable where halogen-free requirement is not mandated (e.g., non-automotive commercial equipment). | Select when cost sensitivity outweighs halogen-free compliance; identical layout and performance. |
| SMCJ58CA-M3 | Higher 1500 W peak pulse power, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), same VWM/VC ratings. | Better suited for higher-energy surges (e.g., outdoor telecom cabinets); requires PCB footprint revision. | Choose when system-level surge testing exceeds 600 W or when extended thermal margin is required. |
Compared with SMBJ58CA-E3/5B, the M3 variant adds halogen-free compliance without performance trade-offs; versus SMCJ58CA-M3, SMBJ58CA-M3/5B offers 40% smaller footprint and sufficient surge rating for most industrial 48 V applications - enabling compact, compliant, and cost-optimized designs.
Availability
SMBJ58CA-M3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, 48 V DC power rail clamping, and telecom Ethernet PHY protection requiring stable component supply across long production lifecycles.
Supply support for SMBJ58CA-M3/5B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMBJ series targets board-level transient suppression in harsh environments - engineered for high surge immunity, low clamping, and seamless integration into automated SMT lines for industrial, telecom, and automotive electronics.
FAQ
What is the clamping voltage of SMBJ58CA-M3/5B at its rated peak pulse current?
The SMBJ58CA-M3/5B has a maximum clamping voltage (VC) of 93.6 V at its rated peak pulse current (IPPM) of 6.4 A under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and ensures downstream components remain within safe operating voltage limits during surge events. The SMBJ58CA-M3/5B achieves this clamping performance while maintaining bidirectional symmetry and low leakage (<1 µA at 58 V).
Is SMBJ58CA-M3/5B suitable for automotive applications?
SMBJ58CA-M3/5B is halogen-free and RoHS-compliant but not AEC-Q101 qualified. For automotive use, Vishay offers the HM3-suffixed variants (e.g., SMBJ58CAHM3_B/I) with full AEC-Q101 qualification. The SMBJ58CA-M3/5B remains appropriate for non-safety-critical automotive body electronics where qualification is not mandated, provided thermal and surge margins are validated per ISO 7637-2. Always verify compliance requirements before using SMBJ58CA-M3/5B in vehicle systems.
How does the bidirectional nature of SMBJ58CA-M3/5B affect PCB layout?
The SMBJ58CA-M3/5B has no polarity marking and identical electrical behavior in both directions, eliminating orientation constraints during placement. This simplifies automated assembly and reduces risk of misorientation-related failures. PCB layout requires symmetric 0.2" × 0.2" copper pads per terminal to meet thermal resistance (RθJA = 100 °C/W) and surge current handling. No silkscreen polarity indicator is needed - the SMBJ58CA-M3/5B functions identically regardless of terminal assignment.
What is the maximum operating temperature for SMBJ58CA-M3/5B?
The SMBJ58CA-M3/5B has a specified operating junction temperature range of –55 °C to +150 °C. Its thermal resistance (RθJA = 100 °C/W) means that at 5.0 W steady-state power dissipation, junction temperature rises 500 °C above ambient - but actual continuous dissipation is limited to 5.0 W only with infinite heatsink; in typical SMB layout, derating applies above 25 °C ambient. The SMBJ58CA-M3/5B reliably operates in sealed industrial enclosures up to +85 °C ambient when surge duty cycle remains low.
Does SMBJ58CA-M3/5B meet any industry surge immunity standards?
The SMBJ58CA-M3/5B supports compliance with IEC 61000-4-5 (surge immunity) up to Level 3 (2 kV line-to-earth, 1 kV line-to-line) and Level 4 (4 kV line-to-earth, 2 kV line-to-line) when used with appropriate PCB layout and system-level filtering. Its 600 W peak pulse power rating aligns with 10/1000 µs waveform requirements in these standards. While the SMBJ58CA-M3/5B itself is not certified, its parameters enable system-level pass rates - validation must be performed in final application context per IEC 61000-4-5 test setup.
SMBJ58CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ58CA-M3/5B FAQ
1.How can I place an order for SMBJ58CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CA-M3/5B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBJ58CA-M3/5B reliable?
The price and inventory of SMBJ58CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ58CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CA-M3/5B?
SMBJ58CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CA-M3/5B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBJ58CA-M3/5B?
For technical support, including SMBJ58CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ58CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ58CA-M3/5B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBJ58CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ58CA-M3/5B?
All SMBJ58CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CA-M3/5B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBJ58CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ58CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CA-M3/5B Tags
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